This is funny because I was watching season 1 episode 18 (or so) of “Revolution” last night on netflix...
two steam powered river boats chasing one another at 2.5 knots.
which also reminds me of George Costanza (sp?) racing scooters on Seinfeld.
MarineTraffic.com’s ship position coverage of the Straights is turned off.
http://www.marinetraffic.com/ais/home